CVEs-PoC/2020/CVE-2020-7754.md

### [CVE-2020-7754](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7754)
![](https://img.shields.io/static/v1?label=Product&message=npm-user-validate&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%201.0.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Regular%20Expression%20Denial%20of%20Service%20(ReDoS)&color=brighgreen)

### Description

This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/engn33r/awesome-redos-security
- https://github.com/yetingli/PoCs